Straying from the typical extravagant celebrity birthday bash, Hilary Duffkicked off her 26th with a low-key night out with her hubby and friends.

The Two and a Half Men actress rang in her big day with Mike Comrie and company in an evening of bowling and fun at the Spare Room at the Roosevelt Hotel in Los Angeles Friday night, a source tells E! News exclusively.

The busy mom left 18-month-old Luca at home, and showed off her skills on the lanes as she played several games in a gray tank top and leather pants.

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